<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<frameset cols="33%,33%,*">
    <frame src="1.html">
    <frameset rows="30%,*">
        <frame src="2.html">
        <frame src="3.html" name="f3">
    </frameset>
    <frame src="4.html">
</frameset>
</html>